Read LG WT-W7111TH Service Manual online
37
Where, what & how to check?
Result of Check
Possible Cause How to repair & settle
Drain Motor
(For Non-Pump Model only)
(For Non-Pump Model only)
1. Check resistance of the drain
motor if it can not pull the PV link.
Resistance is
normal.
normal.
Drain motor coil is
open.
open.
Contact defect in
connection parts
or defect of the
controller.
connection parts
or defect of the
controller.
Change the drain motor
Check the washer
works normally after
reassembling.
(PV link & drain motor
reassembling.
(PV link & drain motor
lever should be
assembled accurately.)
assembled accurately.)
Change the controller if
there is no defects in the
connection parts.
there is no defects in the
connection parts.
12-8.Water drains though it is not the time of drain.
Where, what & how to check?
Result of Check
Possible Cause How to repair & settle
Drain Motor
(for Non-Pump Model only)
(for Non-Pump Model only)
1. Check whether the drain motor is
normally returned after turning
power off.
(It is considered normal if the lever
of the drain motor is fully pulled out
by the PV spring)
power off.
(It is considered normal if the lever
of the drain motor is fully pulled out
by the PV spring)
PV Case
1. If water drains though the drain
motor is normally returned, check
whether PV asm is blocked by
foreign objects or the bellows in
the PV asm is deformed.
whether PV asm is blocked by
foreign objects or the bellows in
the PV asm is deformed.
Controller
1. Check whether the drain motor or
the drain pump works immediately
after power is turned on.
after power is turned on.
Blocked.
Blocked.
Bellows
deformed.
deformed.
Works.
Defect of the drain
motor.
motor.
Defect of PV
Bellows.
Bellows.
Defect of the
controller(Triac
defect)
controller(Triac
defect)
Change the drain motor.
Remove the objects in
the PV asm.
the PV asm.
Change the PV bellows.
(The bellows may swell
up if it contact petroleum
or petrochemical
substance because it is
made of rubber)
(The bellows may swell
up if it contact petroleum
or petrochemical
substance because it is
made of rubber)
Change the controller.
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